Cook the Macaronis as instructed in the Water with 1/2 tsp salt. Drain them afterwards. Chop the onions finely. In a bowl add the olive oil, lemon Juice, salt & pepper, and press the garlic inside. Mix all well together, and set the dressing aside. Sautee the courgette and aubergine in a little olive oil over high heat, until they are softly browned. In a bowl add the pasta, the cherry tomatoes, the rocket salad, the olives, the onions, the parsley and the dressing. Mix well, so all is covered with the marinade. Crumble the cheese over the salad, and mix again. Let it marinate for at least 3-4 Hours in the fridge. Taste it if you need more salt or pepper.